CVE-2026-4227
8.8 · HIGHOverview
CVE-2026-4227 is a high-severity vulnerability affecting lb-link bl-wr9000_firmware. It was published on March 16, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
A security vulnerability has been detected in LB-LINK BL-WR9000 2.4.9. The impacted element is the function sub_44D844 of the file /goform/get_hidessid_cfg. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Remediation
Check the references section for vendor advisories and patches from lb-link. Update bl-wr9000_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
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Frequently Asked Questions
What is CVE-2026-4227?
CVE-2026-4227 is a high-severity vulnerability affecting lb-link bl-wr9000_firmware. It was published on March 16, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-4227?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-4227?
Check the references section for vendor advisories and patches from lb-link. Update bl-wr9000_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-4227?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-4227 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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